Fixes bugs found by Sonarcloud and Coverity

core/io/resource_format_binary.cpp

@@ -1008,7 +1008,9 @@ String ResourceLoaderBinary::recognize(FileAccess *p_f) {
 
 ResourceLoaderBinary::ResourceLoaderBinary() :
 		translation_remapped(false),
+		ver_format(0),
 		f(NULL),
+		importmd_ofs(0),
 		error(OK) {
 
 	progress = nullptr;

core/io/resource_loader.cpp

@@ -538,6 +538,7 @@ RES ResourceLoader::load(const String &p_path, const String &p_type_hint, bool p
 				if (r_error) {
 					*r_error = err;
 				}
+				thread_load_mutex->unlock();
 				return RES();
 			}
 			thread_load_mutex->unlock();

core/io/resource_loader.h

@@ -116,7 +116,7 @@ private:
 		String type_hint;
 		float progress = 0.0;
 		ThreadLoadStatus status = THREAD_LOAD_IN_PROGRESS;
-		Error error;
+		Error error = OK;
 		RES resource;
 		bool xl_remapped = false;
 		bool use_sub_threads = false;

core/message_queue.cpp

@@ -268,7 +268,10 @@ void MessageQueue::flush() {
 	//using reverse locking strategy
 	_THREAD_SAFE_LOCK_
 
-	ERR_FAIL_COND(flushing); //already flushing, you did something odd
+	if (flushing) {
+		_THREAD_SAFE_UNLOCK_
+		ERR_FAIL_COND(flushing); //already flushing, you did something odd
+	}
 	flushing = true;
 
 	while (read_pos < buffer_end) {

core/variant_parser.h

@@ -77,7 +77,7 @@ public:
 
 	struct ResourceParser {
 
-		void *userdata;
+		void *userdata = nullptr;
 		ParseResourceFunc func;
 		ParseResourceFunc ext_func;
 		ParseResourceFunc sub_func;

drivers/vulkan/rendering_device_vulkan.cpp

@@ -4182,7 +4182,10 @@ RenderingDeviceVulkan::DescriptorPool *RenderingDeviceVulkan::_descriptor_pool_a
 		descriptor_pool_create_info.poolSizeCount = sizes.size();
 		descriptor_pool_create_info.pPoolSizes = sizes.ptr();
 		VkResult res = vkCreateDescriptorPool(device, &descriptor_pool_create_info, NULL, &pool->pool);
-		ERR_FAIL_COND_V(res, NULL);
+		if (res) {
+			memdelete(pool);
+			ERR_FAIL_COND_V(res, NULL);
+		}
 		descriptor_pools[p_key].insert(pool);
 	}
 

scene/resources/resource_format_text.cpp

@@ -403,8 +403,6 @@ Ref<PackedScene> ResourceLoaderText::_parse_node_tag(VariantParser::ResourcePars
 			return Ref<PackedScene>();
 		}
 	}
-
-	return packed_scene;
 }
 
 Error ResourceLoaderText::load() {
@@ -671,10 +669,6 @@ Error ResourceLoaderText::load() {
 				return error;
 			}
 		}
-
-		if (progress) {
-			*progress = resource_current / float(resources_total);
-		}
 	}
 
 	//for scene files
@@ -731,9 +725,15 @@ void ResourceLoaderText::set_translation_remapped(bool p_remapped) {
 }
 
 ResourceLoaderText::ResourceLoaderText() {
+	resources_total = 0;
+	resource_current = 0;
+	use_sub_threads = false;
+
 	progress = nullptr;
+	lines = false;
 	translation_remapped = false;
 	use_sub_threads = false;
+	error = OK;
 }
 
 ResourceLoaderText::~ResourceLoaderText() {

servers/visual/rasterizer.h

@@ -1171,6 +1171,7 @@ public:
 				Command *n = c->next;
 				if (c == commands) {
 					memdelete(commands);
+					commands = NULL;
 				} else {
 					c->~Command();
 				}

servers/visual/rasterizer_rd/rasterizer_effects_rd.cpp

@@ -1077,7 +1077,7 @@ RasterizerEffectsRD::~RasterizerEffectsRD() {
 		RD::get_singleton()->free(filter.image_uniform_set);
 	}
 
-	if (RD::get_singleton()->uniform_set_is_valid(filter.image_uniform_set)) {
+	if (RD::get_singleton()->uniform_set_is_valid(filter.uniform_set)) {
 		RD::get_singleton()->free(filter.uniform_set);
 	}
 

servers/visual/rasterizer_rd/rasterizer_storage_rd.cpp

@@ -1906,8 +1906,10 @@ void RasterizerStorageRD::mesh_add_surface(RID p_mesh, const VS::SurfaceData &p_
 
 	for (int i = 0; i < p_surface.blend_shapes.size(); i++) {
 
-		ERR_FAIL_COND(p_surface.blend_shapes[i].size() != p_surface.vertex_data.size());
-
+		if (p_surface.blend_shapes[i].size() != p_surface.vertex_data.size()) {
+			memdelete(s);
+			ERR_FAIL_COND(p_surface.blend_shapes[i].size() != p_surface.vertex_data.size());
+		}
 		RID vertex_buffer = RD::get_singleton()->vertex_buffer_create(p_surface.blend_shapes[i].size(), p_surface.blend_shapes[i]);
 		s->blend_shapes.push_back(vertex_buffer);
 	}